It is very important that your doctor check your progress or your child's progress at regular visits. This will allow your doctor to see if the medicine is working properly and to check for any unwanted effects caused by the medicine.
This medicine may cause paradoxical bronchospasm, which may be life-threatening. Check with your doctor right away if you are having a cough, difficulty with breathing, shortness of breath, or wheezing.
Check with your doctor at once if difficulty with breathing continues after using a dose of this medicine or if your condition gets worse.
You may also be taking an anti-inflammatory medicine (e.g., corticosteroids) for asthma along with this medicine. Do not stop taking the anti-inflammatory medicine even if your asthma seems better, unless you are told to do so by your doctor.
Hypokalemia may occur while you are using this medicine. Check with your doctor right away if you have more than one of the following symptoms: convulsions; decreased urine; dry mouth; increased thirst; irregular heartbeat; loss of appetite; mood changes; muscle pain or cramps; nausea or vomiting; numbness or tingling in the hands, feet, or lips; shortness of breath; or unusual tiredness or weakness.
Do not change your dose or stop using this medicine without asking your doctor first.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines for appetite control, asthma, colds, cough, hay fever, or sinus problems, and herbal or vitamin supplements.